diff --git a/api/system-current.txt b/api/system-current.txt
index cab5e34bc0680..6cbddf982e822 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -1,6 +1,7 @@
 package android {
 
   public static final class Manifest.permission {
+    field public static final java.lang.String ACCESS_AMBIENT_LIGHT_STATS = "android.permission.ACCESS_AMBIENT_LIGHT_STATS";
     field public static final java.lang.String ACCESS_BROADCAST_RADIO = "android.permission.ACCESS_BROADCAST_RADIO";
     field public static final java.lang.String ACCESS_CACHE_FILESYSTEM = "android.permission.ACCESS_CACHE_FILESYSTEM";
     field public static final java.lang.String ACCESS_CHECKIN_PROPERTIES = "android.permission.ACCESS_CHECKIN_PROPERTIES";
@@ -1220,6 +1221,7 @@ package android.hardware.display {
   }
 
   public final class DisplayManager {
+    method public java.util.List<android.hardware.display.AmbientBrightnessDayStats> getAmbientBrightnessStats();
     method public java.util.List<android.hardware.display.BrightnessChangeEvent> getBrightnessEvents();
     method public android.graphics.Point getStableDisplaySize();
     method public void setBrightnessConfiguration(android.hardware.display.BrightnessConfiguration);
diff --git a/api/test-current.txt b/api/test-current.txt
index 2559d24f3452f..9d67f4c3bb602 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -360,6 +360,7 @@ package android.hardware.display {
   }
 
   public final class DisplayManager {
+    method public java.util.List<android.hardware.display.AmbientBrightnessDayStats> getAmbientBrightnessStats();
     method public java.util.List<android.hardware.display.BrightnessChangeEvent> getBrightnessEvents();
     method public android.graphics.Point getStableDisplaySize();
     method public void setBrightnessConfiguration(android.hardware.display.BrightnessConfiguration);
diff --git a/core/java/android/hardware/display/DisplayManager.java b/core/java/android/hardware/display/DisplayManager.java
index 36d5615e6ac28..e81fbeed34b03 100644
--- a/core/java/android/hardware/display/DisplayManager.java
+++ b/core/java/android/hardware/display/DisplayManager.java
@@ -28,7 +28,6 @@ import android.content.Context;
 import android.graphics.Point;
 import android.media.projection.MediaProjection;
 import android.os.Handler;
-import android.os.UserHandle;
 import android.util.SparseArray;
 import android.view.Display;
 import android.view.Surface;
@@ -636,6 +635,8 @@ public final class DisplayManager {
      *
      * @hide until we make it a system api
      */
+    @SystemApi
+    @TestApi
     @RequiresPermission(Manifest.permission.ACCESS_AMBIENT_LIGHT_STATS)
     public List<AmbientBrightnessDayStats> getAmbientBrightnessStats() {
         return mGlobal.getAmbientBrightnessStats();
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 3324fc3cdbfde..ef206f9dde032 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -3093,8 +3093,8 @@
 
     <!-- Allows an application to collect ambient light stats.
          <p>Not for use by third party applications.</p>
-         TODO: Make a system API
-         @hide -->
+         @hide
+         @SystemApi -->
     <permission android:name="android.permission.ACCESS_AMBIENT_LIGHT_STATS"
         android:protectionLevel="signature|privileged|development" />